1.Caudal epidural steroid injections for treatment of chronic lower back pain.
Byung Gwon PARK ; Kweon Yeong KIM
Journal of the Korean Academy of Rehabilitation Medicine 1993;17(4):642-648
No abstract available.
Low Back Pain*
2.Histopathologic Changes of Testis after Experimental Testicular Biopsy in Rabbit.
Kweon Sik MIN ; Nam Cheol PARK ; Jong Byung YOON
Korean Journal of Urology 1990;31(4):498-503
Testicular biopsy to have been utilized as a diagnostic tool in male infertility were underwent experimentally to observe the effects on the morphology and the physiology of post-biopsied testis of 17 male rabbits. Bilateral orchiectomy was done at third day, 1st week, 2nd week and 4th week after open testicular biopsy, and biopsied testes were compared with contralateral control in histopathological views. The results were summarized as follows : 1. In seminiferous tubules of sham-operated tests, there was no significant pathologic changes. 2. The inflammatory reaction was most severe at third day after biopsy and completely disappeared at 4th week. 3. Increased thickness of tunica albuginea and fibrotic reaction were observed near the biopsy site. 4. Spermatogenesis did not only decrease near the biopsy site with atrophy of the seminiferous tubules but also mildly decreased on the far area, that all began to recover at 4th week. 5. No evidence of immunologic reaction and hyperplasia of Leydig cell were demonstrated. It was suggested that testicular injury after biopsy was developed by interference of local blood flow, obstruction of seminiferous tubules and inflammatory reaction, so that could be minimized by application of open testicular biopsy only to definitively indicated cases.
Atrophy
;
Biopsy*
;
Humans
;
Hyperplasia
;
Infertility, Male
;
Male
;
Orchiectomy
;
Physiology
;
Rabbits
;
Seminiferous Tubules
;
Spermatogenesis
;
Testis*
3.Reference Values of Cadmium in Kidney and Liver in Korean.
Jung Duck PARK ; Byung Sun CHOI ; Il Hoon KWEON ; Yeon Pyo HONG ; Im Won CHANG
Korean Journal of Occupational and Environmental Medicine 2000;12(3):346-355
OBJECTIVES: Cadmium (Cd), a toxic and non-essential metal, is recognized as a human carcinogen, which has a tendency to accumulate in the human body. The levels of Cd in renal cortex and liver are good indicators as an index of Cd exposure in the general population. In this study, we present an estimation of reference Cd levels in tissue (renal cortex and liver) and total body burden in the general population of Korea. MEDTHODS: Cd and zinc (Zn) were analyzed in renal cortex and liver from 254 autopsies (male : 188 cases, female : 66 cases) aged 0 to 87 years. RESULTS: Geometric mean concentration of Cd was 27.4 and 3.1 ua/g wet weight in renal cortex and liver, respectively. The level of Zn in renal cortex and liver was 35.4 and 42. 6 v/g wet weight, respectively. The result suggests that kidney is the target organ for Cd accumulation. The accumulation of Cd in renal cortex was age-dependent with a biphasic pattern. The level of Cd in renal cortex increased with age up to the fifties, and then leveled off thereafter. Based on the data, the regression model for Cd accumulation in renal cortex by age is predicted by : Log KCd = 0. 2325 + 0. 0553 Age 0. 0005 Age. The highest Cd accumulation in renal cortex of Koreans was estimated at 43. 3 ua/g wet weight at 50. 8 years old. In addition, the total Cd body burden by age was estimated by the following equation: Total Cd Body Burden = -4. 5948 + l. 2278 Age - 0. 0121 Age. The highest body burden of Cd was estimated at 26. 5 mg at age 50. 7 years in the Korean general population. The positive correlation between Zn and Cd was observed in renal cortex and liver. CONCLUSIONS: The level of Cd exposure in Korean was found to be lower than in Japanese, but same as or higher than in American and Europeans.
Asian Continental Ancestry Group
;
Autopsy
;
Body Burden
;
Cadmium*
;
Child
;
Female
;
Human Body
;
Humans
;
Kidney Cortex
;
Kidney*
;
Korea
;
Liver*
;
Reference Values*
;
Zinc
4.Correlation of plain film and computed tomography findings of lobar atelectasis.
Ho Joon KIM ; Jeong Mi KWEON ; Yeon Won PARK ; Byung Hee CHUN ; Young Duk JOH
Journal of the Korean Radiological Society 1991;27(2):245-251
No abstract available.
Pulmonary Atelectasis*
5.Hemodynamic Changes in the Deliberate Hypotension with Sodium Nitroprusside or Esmolol in Dogs.
Ju Tae SOHN ; Byung Kweon PARK ; Heon Keun LEE
Korean Journal of Anesthesiology 1995;28(3):385-390
The deliberate hypotension with esmolol or sodium nitroprusside(SNP) was provided subsequently in random order with six dogs. Anesthesia was maintained with 0.8 vol% halothane, end-tidal, in N2O/O2, 50: 50, with vecuronium. Mean arterial pressure was reduced 30-35% to 70 mmHg, with use of SNP or esmolol. Mean arterial pressure, heart rate, mean pulmonary arterial pressure, arterial blood gas analysis, and cardiac output were measured both prior to the deliberate hypotension and at 70 mmHg of mean arterial pressure induced with esmolol or SNP. The following results were observed; 1) The mean doses required were 725+/-250 ug/kg/min in esmolol and 12+/-2 ug/kg/min in SNP. 2) Esmolol was associated with a decrease in cardiac output (from 2.13+/-0.23 to 1.27+/-0.23 L/min), in heart rate (from 128+/-14 to 91+/-11/min), and an increase in central venous pressure (from 9.2+/-3.27 to 11.60+/-3.21 mmHg)(p<0.05). 3) SNP decreased systemic vascular resistance from 41111+/-484 to 2175+/-451 dynessec/cm5 (P<0.05), trended to increase heart rate. 4) A change in arterial blood gas analysis before and during deliberate hypotension with esmolol or SNP was not significant. As to mechanism of hypotensive effect, SNP caused decrease in systemic vascular resistance by 47% but esmolol significantly reduced cardiac output by 40% and heart rate by 29%. The result of present study suggests that when moderately deliberate hypotension with only esmolol was done, the potential for marked myocardial depression must be recognized. The differences in pharmacologic properties for the different hypotensive agents suggest that combinations of these agents may be provide a pharmacologic profile superior to either agent alone.
Anesthesia
;
Animals
;
Arterial Pressure
;
Blood Gas Analysis
;
Cardiac Output
;
Central Venous Pressure
;
Depression
;
Dogs*
;
Halothane
;
Heart Rate
;
Hemodynamics*
;
Hypotension*
;
Nitroprusside*
;
Sodium*
;
Vascular Resistance
;
Vecuronium Bromide
6.A Case of Middle Ear Effusion due to Lipoma on the Eustachian Tube.
Beom Seok PARK ; Byung Gun PARK ; Hyoung Ju LEE ; Soo Kweon KOO
Korean Journal of Otolaryngology - Head and Neck Surgery 2008;51(10):950-953
Lipoma of the head and neck region rarely occurs, if any, on the posterior triangle of neck. We have experienced a lipoma on Eustachian tube, which caused recurrent middle ear effusion. A 42-year-old female patient was presented with right aural fullness and hearing disturbance. She had a history of several cases of right middle ear effusion in the past and insertions of ventilation tubes to relieve each of them. A yellowish round mass was found on the pharyngeal orifice of the right Eustachian tube by fiberoptic nasopharyngoscopy. It was removed via endoscopic endonasal approach and there is no evidence of recurrence along about 3 months after the surgery. This would be a good case for the importance of nasopharyngeal examination in patient with middle ear effusion.
Adult
;
Ear, Middle
;
Eustachian Tube
;
Female
;
Head
;
Hearing
;
Humans
;
Lipoma
;
Neck
;
Otitis Media with Effusion
;
Recurrence
;
Ventilation
7.Short Term Outcomes and Prognostic Factors Based on Radiofrequency Thermocoagulation on Lumbar Medial Branches.
Byung In CHOI ; Tae Dong KWEON ; Kyung Bae PARK ; Youn Woo LEE
The Korean Journal of Pain 2007;20(2):116-122
BACKGROUND: Lumbar zygapophysial joints are a common source of chronic lower back pain and radiofrequency thermocoagulation (RF) of the medial branches (MB) has been shown to be effective at providing substantial pain relief for chronic low back pain.Therefore, we carried out this study to determine the short term outcomes and prognostic factors of RF on the MB of patients with lumbar facet syndrome. METHODS: We performed RF in fourteen patients who showed greater than 80% pain relief up to three times after a diagnostic MB block was conducted using 0.3 ml of 0.5% bupivacaine.Using 10 cm curved electrodes with 10-mm active tip, a 60 second, 80 degrees C lesion was made after electrical stimulation at 50 Hz for sensory and 2 Hz for motor nerve testing.The degree of pain relief was then assessed after 2 weeks, and again after 3 months using a visual analog scale (VAS) and a four point Likert scale.The outcome was regarded as 'success' if at least a 50% reduction in the VAS was observed.Possible prognostic factors between the two groups were also evaluated. RESULTS: The success rate was 71.4% (10/14) after three months of follow-up. However, there were transient complications, such as neuritis like syndrome, in 4 patients. In addition, short symptom duration and low minimal voltage (< 0.4 V) for sensory stimulation were shown to be the relevant prognostic factors for a successful outcome. CONCLUSIONS: RF may be an alternative to repeated MB block or intraarticular injection for palliation of lumbar facet syndrome. For better outcomes, early diagnosis and strict patient selection should be coupled with efforts to avoid anatomically incorrect RF.
Early Diagnosis
;
Electric Stimulation
;
Electrocoagulation*
;
Electrodes
;
Follow-Up Studies
;
Humans
;
Injections, Intra-Articular
;
Joints
;
Low Back Pain
;
Neuritis
;
Patient Selection
;
Visual Analog Scale
8.Radiologic Assessment of Postoperative Stability in Unstable Intertrochanteric Fracture Using Lateral Radiograph.
Suc Hyun KWEON ; Jin Yeong PARK ; Seng Hwan KOOK ; Byung Min YOO
Journal of the Korean Fracture Society 2016;29(3):171-177
PURPOSE: The purpose of this study was to compare the sliding distance of lag screw in patients with unstable femoral intertrochanteric fractures treated with intramedullary fixation using a cephalomedullary nail with a fixed angle between the neck and shaft of the femur in relation to reduction type by lateral radiographs. MATERIALS AND METHODS: Between January 2009 to October 2013, 86 cases (86 patients) with unstable femoral intertrochanteric fractures were treated with intramedullary fixation using a metal nail with a fixed neck-shaft angle and followed for at least 6 months. We used AO/OTA classification, and all cases were unstable fractures. Twenty cases were 31-A22, 54 cases were 31-A23, and 12 cases were 31-A3. There were 30 men and 56 women. Average patient age was 73.7 years (range, 47-97 years). We classified reduction types into three groups as postoperative lateral radiologic findings. Group 1 showed no displacement, group 2 showed anterior displacement of the femur neck, and group 3 showed posterior displacement of the femur neck. The radiological assessment compared the sliding distance of the lag screw between postoperative X-ray and last follow-up X-ray. RESULTS: Forty-two cases were in group 1, 22 cases were in group 2, and the other 22 cases were in group 3. There was no significant difference in the patient characteristics of each group. The sliding distances of the lag screw were 4.9±3.2 mm, 4.6±3.6 mm, and 8.5±4.9 mm, respectively, and group 3 showed a significant result (p<0.0001, p=0.024). CONCLUSION: In cases treated with intramedullary fixation using a cephalomedullary nail with a fixed neck-shaft angle, appropriate reduction with a lateral radiograph before screw fixation is needed to prevent excessive lag screw sliding.
Classification
;
Female
;
Femur
;
Femur Neck
;
Follow-Up Studies
;
Fracture Fixation, Intramedullary
;
Hip Fractures
;
Humans
;
Male
;
Neck
9.Clinical Review of Honeymoon Impotence.
Kweon Sik MIN ; Nam Cheol PARK ; Young Il CHA ; Jong Byung YOON
Korean Journal of Urology 1990;31(6):893-898
Recently, with the influence of mass media and sexual liberation, the patients have been increasing to visit the impotence clinic with male sexual dysfunction during early married period. We studied twenty five patients suffering from honeymoon impotence from Jan. 1985 to Mar. 1990. The results were as follows : 1. Age distributions were 25 to 40 years old with a mean of 30. The interval of impotence prior to visit were 2 days to 3 years after marriage and the 17 patients ( 68.0% ) were within 3 months. 2. There was no significance according to the school career and the occupations of patients. 3. Except 5 patients, 20 were primary impotences that were possible premarital sexual coitus on history. One of these had the history of psychiatric consultation by sexual problems and another had moderate mental retardation. 4. On first visit, 11 of 25 were on doing the separation or divorce suits. 5. Except 1 with Klinefelter's syndrome, all were organically normal erectile function tests including nocturnal penile tumescence test. 6. Of 14 patients who accepted to therapy, 10 were able to gel desirable sexual life with one or the combination of following : supportive psychotherapy, yohimbine administration, intracavernous pharmacotherapy and vacuum tumescence enhancement therapy. The rest 4 were able to get penile erection, but sexual life was also failed with their wives. The honeymoon impotence is mostly pychogenic and also easily curable with its recent increasing frequency. However, because of the associating problems of separation, divorce and alimony, we think that the diagnosis and treatment of honeymoon impotence might be performed with prudent approach.
Adult
;
Age Distribution
;
Coitus
;
Diagnosis
;
Divorce
;
Drug Therapy
;
Erectile Dysfunction*
;
Humans
;
Intellectual Disability
;
Klinefelter Syndrome
;
Male
;
Marriage
;
Mass Media
;
Occupations
;
Penile Erection
;
Psychotherapy
;
Spouses
;
Vacuum
;
Yohimbine
10.Ventricular Dilatation by Early Surgery on Aneurysms with SAH.
Sang Pyung LEE ; Jang Ku KWEON ; Byung Jik KANG ; Sung Kyoo HWANG ; In Suk HAMM ; Yeun Mook PARK ; Seung Lae KIM
Journal of Korean Neurosurgical Society 1990;19(7):912-919
Among 202 aneurysmal patients with SAH who were admitted to Kyungpook National University Hospital from Jan. 1984 through Jan. 1988, the incidence of ventricular dilatation confirmed by postoperative follow-up brain CT scannings was 32.2%(65 cases). And 33 cases(19.3%) was in mild ventricular dilatation, 9 cases(4.5%) was in moderate and 23 cases(11.4%) in severe who needed the shunting procedure were analysed. The incidence of ventricular dilatation to the site of aneurysm was highest in A-com A. aneurysm(42.2%), followed by P-com A. aneurysm(36.4%) and MCA aneurysm(11.3%). The incidence of ventricular dilatation and the need for shunting was higher in multiple bleeding patients than the single. The good risk patients had meaningfully lower incidence of ventricular dilatation than the poor risk group. In the delayed surgical group showed significantly more numbers of ventricular dilatation needing the shunt than the cases in early group.
Aneurysm*
;
Brain
;
Dilatation*
;
Follow-Up Studies
;
Gyeongsangbuk-do
;
Hemorrhage
;
Humans
;
Incidence
;
Tomography, X-Ray Computed